Apple released a new beta version on almost all operating systems. Update got iOS iPadOS, tvOS and macOS. While the new test build is only available to authorized developers.
In the first beta versions of iOS 13.3.1, 13.3.1 iPadOS, tvOS 13.3.1 and macOS 10.15.3 cupertinos focused on eliminating defects and errors. For example, in iPadOS iOS and Apple developers have eliminated the bug that allows you to circumvent the ban on the use of applications in Screen time.
In General, users who have already set a new test build, note that they are not showing any significant changes. On this hint, and light weight beta versions. For example, iOS 13.3.1 weighs about 250 MB.
Recall that recently Apple has released the final iOS build 13.3, 13.3 iPadOS, macOS 10.15.2, watchOS 6.1.1 and tvOS 13.3. They went out a week ago. They cupertinos also worked to resolve errors and increase the speed of the operating systems.